Siemens D7-SYS - Page 22

Contents
System- and communication configuring D7-SYS - SIMADYN D xi
Edition 12.2003
3.10 DUST3 coupling................................................................................................. 3-133
3.10.1 Hardware structure ............................................................................................ 3-133
3.10.2 Configuring.........................................................................................................3-133
3.10.2.1 Data entries at inputs AT, AR............................................................................3-133
3.10.2.2 Central coupling block .......................................................................................3-134
3.10.2.3 Transmit/receive blocks.....................................................................................3-135
3.11 DUST7 coupling................................................................................................. 3-136
3.11.1 General .............................................................................................................. 3-136
3.11.2 Hardware ...........................................................................................................3-136
3.11.3 Configuring.........................................................................................................3-136
3.12 MPI coupling ......................................................................................................3-137
3.12.1 Characteristics and hardware............................................................................ 3-137
3.12.2 Configuring.........................................................................................................3-137
3.13 USS master coupling.........................................................................................3-138
3.13.1 Hardware structure ............................................................................................ 3-138
3.13.2 Data transfer technique ..................................................................................... 3-141
3.13.3 Transferred net data ..........................................................................................3-141
3.13.4 Configuring.........................................................................................................3-141
3.13.4.1 Central coupling block @CSU........................................................................... 3-141
3.13.4.2 Function blocks which can be used...................................................................3-142
3.13.4.3 Telegram types .................................................................................................. 3-143
3.13.5 Mode of operation.............................................................................................. 3-143
3.13.6 USS master on the T400 technology module....................................................3-144
3.13.6.1 Basis network for the T400 technology module ................................................3-144
3.13.6.2 Initialization ........................................................................................................3-145
3.13.6.3 Broadcast...........................................................................................................3-145
3.13.7 Literature............................................................................................................3-145
3.14 USS slave coupling............................................................................................ 3-146
3.14.1 Basis network for the T400 technology module ................................................3-146
3.14.2 Initialization ........................................................................................................3-146
3.14.3 Exchanging process data ..................................................................................3-147
3.14.3.1 Transmitting .......................................................................................................3-147
3.14.3.2 Receiving ...........................................................................................................3-147
3.14.4 Handling and visualizing parameters................................................................. 3-148
3.14.5 Special features for 4-conductor operation of the USS-slave coupling.............3-148
3.14.6 USS-slave coupling via V24/RS232 ..................................................................3-148
3.15 Peer-to-peer coupling ........................................................................................ 3-149
3.15.1 Initialization ........................................................................................................3-149
3.15.2 Transferring process data..................................................................................3-149
3.15.2.1 Transmitting .......................................................................................................3-149
3.15.2.2 Receiving ...........................................................................................................3-150
3.16 SIMATIC P-bus coupling ................................................................................... 3-151
3.16.1 Overview of the 3 data transfer types, FM 458 ←→ SIMATIC-CPU.................3-152
3.16.2 Initiating a process interrupt on SIMATIC-CPU.................................................3-153
3.16.3 Data transfer via I/O accesses ..........................................................................3-154